13289252domain: NAppears in sequencesNumber of (n+1)X(n+1) binary arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum.at n=7A185789Number of (n+1) X 9 binary arrays with no 2 X 2 subblock sum equal to any horizontal or vertical neighbor 2 X 2 subblock sum.at n=7A185797